AWS Certified Data Engineer – Associate (DEA-C01) — Question 169

A financial company recently added more features to its mobile app. The new features required the company to create a new topic in an existing Amazon Managed Streaming for Apache Kafka (Amazon MSK) cluster.

A few days after the company added the new topic, Amazon CloudWatch raised an alarm on the RootDiskUsed metric for the MSK cluster.

How should the company address the CloudWatch alarm?

Answer options

• A. Expand the storage of the MSK broker. Configure the MSK cluster storage to expand automatically.
• B. Expand the storage of the Apache ZooKeeper nodes.
• C. Update the MSK broker instance to a larger instance type. Restart the MSK cluster.
• D. Specify the Target Volume-in-GiB parameter for the existing topic.

Correct answer: A

Explanation

The correct answer is A, as expanding the storage of the MSK broker and ensuring it can automatically grow will directly address the RootDiskUsed metric issue. The other options, such as expanding ZooKeeper nodes or changing instance types, do not specifically resolve the storage alert for the MSK cluster itself.